#region Copyright

// The contents of this file are subject to the Mozilla Public License
//  Version 1.1 (the "License"); you may not use this file except in compliance
//  with the License. You may obtain a copy of the License at
//  
//  http://www.mozilla.org/MPL/
//  
//  Software distributed under the License is distributed on an "AS IS"
//  basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
//  License for the specific language governing rights and limitations under 
//  the License.
//  
//  The Initial Developer of the Original Code is Robert Smyth.
//  Portions created by Robert Smyth are Copyright (C) 2008.
//  
//  All Rights Reserved.

#endregion

using NoeticTools.StateEngine.Conditions;
using NoeticTools.StateEngine.Rules;


namespace NoeticTools.StateEngine.Mapper
{
    public class RuleConditionsMapper<TContext, TState, TStateEvent> :
        IRuleConditionsMapper<TContext, TState, TStateEvent>
        where TContext : class
    {
        private readonly IConditionsFactory<TStateEvent> conditionsFactory;
        private readonly IRuleBuilder<TContext, TStateEvent> ruleBuilder;
        private readonly IStateEngineMapper<TContext, TState, TStateEvent> stateEngineMapper;

        public RuleConditionsMapper(IStateEngineMapper<TContext, TState, TStateEvent> stateEngineMapper,
                                    IRuleBuilder<TContext, TStateEvent> ruleBuilder,
                                    IConditionsFactory<TStateEvent> conditionsFactory)
        {
            this.stateEngineMapper = stateEngineMapper;
            this.ruleBuilder = ruleBuilder;
            this.conditionsFactory = conditionsFactory;
        }

        public IStateEngineMapper<TContext, TState, TStateEvent> On(TStateEvent stateEvent)
        {
            ruleBuilder.AddCondition(conditionsFactory.CreateOnEventCondition(stateEvent));
            ruleBuilder.Activate();
            return stateEngineMapper;
        }
    }
}